Operator hash is calculated as a researcher hash. Hash generated also for the first user (owner).
Refactored cloning from peer.
Merge origin/master
Fixed a problem with missing extractors while cloning from repository.
Removed some unnecessary checks on user profiles.
Clone hash is generated also on reference creation.
Renamed internal method for clarity.
Improved the merging process between default extractors and current extractors.
Added the hash history for the users.